You're very young, and it sounds like your sexuality is just beginning to develop, so you may not know for some years, and that's okay - most people don't date at your age, anyway. But I want to leave you with one piece of advice that has helped me and a lot of my friends with the same question (bi or lesbian, specifically) - if you want to be a lesbian, you can be a lesbian. If you want to be bisexual, you can be bisexual. Your instinct may be to look within yourself and ask "who am I, really? Is my attraction to guys real, or comp het? Is my attraction to girls real, or do I just wish I was a lesbian because guys are so annoying? Who would I be if I didn't grow up in this society?" But those questions are philosophical, and the thing about philosophy is that it's exhausting and sometimes useless. What matters to your real life - what you should do, or how you should identify - is what you, the person you are right now, want in your life. If that's to be open to dating guys and girls, you can be bi. If that's only to date girls, you can be a lesbian. If that's not to date anybody at this point, then maybe you don't need a sexual orientation just yet, or if you really want an identity you can think about what you want for the future. But whatever your answer, it may change, and that's okay too.